Skip to main content
padlock icon - secure page this page is secure

Long-term changes in the nightly behaviour of the oxygen red 630.0 nm line nightglow intensity and trends in the thermospheric meridional wind velocity

Buy Article:

$60.00 + tax (Refund Policy)

Long-term changes in the nightly behaviour of the monthly/seasonal mean of the oxygen red 630.0 nm line intensity were observed at Abastumani (41.75° N, 42.82° E) from 1957 to 1993. The long-term increase in the red-line intensity after twilight and decrease at midnight is also mostly accompanied by an increase in the intensity before morning twilight. Using changes in mean seasonal nightly behaviour of the red-line intensity combined with the observed night-time negative trend in the ionosphere F2 layer peak height (hmF2) at Tbilisi (41.65° N, 44.75° E) from 1963 to 1986, the trend in the meridional component of thermospheric wind velocity is estimated. The obtained positive trend in the northward wind velocity (or decrease in the southward wind velocity) has a higher value in winter, where the hmF2 height decrease and the midnight/after midnight decrease in the red-line intensity are larger, and has lower values in spring and summer, where the decrease in hmF2 and midnight red-line intensity are comparatively smaller.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Affiliations: Georgian National Astrophysical Observatory,Ilia Chavchavadze State University, A. Kazbegi ave. 2a0160Tbilisi, Georgia

Publication date: June 10, 2011

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more